p-settle

Settle promises concurrently and get their fulfillment value or rejection reason

Install

$ npm install p-settle

Usage

const pSettle = require('p-settle');
const promisify = require('pify');
const fs = promisify(require('fs'));

const files = [
	'a.txt',
	'b.txt' // Doesn't exist
].map(x => fs.readFile(x, 'utf8'));

pSettle(files).then(result => {
	console.log(result);
	/*
	[{
		isFulfilled: true,
		isRejected: false,
		value: '🦄'
	},
	{
		isFulfilled: false,
		isRejected: true,
		reason: [Error: ENOENT: no such file or directory, open 'b.txt']
	}]
	*/
});

API

pSettle(input, [options])

Returns a Promise that is fulfilled when all promises in input are settled.

The fulfilled value is an array of objects with the following properties:

• isFulfilled
• isRejected
• value or reason (Depending on whether the promise fulfilled or rejected)

input

Type: Iterable<Promise|any>

options

Type: Object

concurrency

Type: number
Default: Infinity
Minimum: 1

Number of concurrently pending promises.

Related

• p-reflect - Make a promise always fulfill with its actual fulfillment value or rejection reason
• p-map - Map over promises concurrently
• More…

License

MIT © Sindre Sorhus